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August 28, 2020,1,Unit 1 The Internet,August 28, 2020,2, Warm-up Background Information Word Study &Text Analysis The Key to Exercises,August 28, 2020,3,Warm-up: Discuss the following questions with your classmates When did you start to use the Internet? How would your life be different if the Internet hadnt been developed?,August 28, 2020,4,Background Information Internet是全球性的计算机网络,我们可以利用它查询信息,收发电子邮件,发布广告,网上聊天,网上购物等。Internet拉近了人与人之间的距离,也为商 务活动提供了全新 的、具有巨大潜力 的平台。,August 28, 2020,5,Background Information CNNIC 每年1月和7月发布中国互联网络发展状况统计报告。截至2007年6月我国网民总数达到1.62亿。,August 28, 2020,6,Text Analysis The Internet and the World Wide Web The Internet The Internet is an open interconnection of networks that enables connected computers to communicate directly. (译文),August 28, 2020,7,Text Analysis The Internet has had a relatively brief, but explosive history so far.(译文) It grew out of an experiment begun in the 1960s by the US Department of Defense (DOD) 1. The DOD created a computer network, which linked U.S. scientific and academic researchers.That network was ARPANET 2 , the forerunner of todays Internet.,August 28, 2020,8,Text Analysis The Internet is based on a common addressing system and communications protocol called TCP/IP (Transmission Control Protocol/Internet Protocol)3 . It has revolutionized the computer and communications world like nothing before.(译文)The Internet has supported global collaboration among people and organizations, information sharing, network innovations and rapid business transactions. (译文),August 28, 2020,9,Text Analysis The World Wide Web The World Wide Web 4, or simply Web, is a way of accessing information over the Internet. Once you spend time on the Web, you will feel there is no limit to what you can discover. The Web allows rich and diverse communication by displaying text, graphics, animation, sound and video. (译文),August 28, 2020,10,Text Analysis How does the Web work? Lets say you want to pay a visit to the Palace Museum 5 Web site. First you enter the address or URL 6of the Web site in your Web browser. Then your browser requests the Web page from the Web server that hosts the Palace Museum Web site. (译文) The Web server sends the data over the Internet to your computer. Your browser interprets the data, displaying it on your computer screen.,August 28, 2020,11,Text Analysis The “glue” that hold the Web together is called hypertext and hyperlink. This feature allows Web pages to be linked so you can easily jump between them. On the Web, you navigate through pages of information based on what interests you at that particular moment, commonly known as browsing the Net. (译文),August 28, 2020,12,Text Analysis Differences between the Internet and the World Wide Web Many people use the terms Internet and World Wide Web interchangeably, but in fact the two terms are not synonymous. The World Wide Web uses the HTTP 7 protocol, one of the languages spoken over the Internet, to transmit data. (译文)The Web is just one of the ways that information can be disseminated over the Internet. The Internet, not the Web, is also used for e-mail 8 , FTP 9 , newsgroup 10 and IM 11 . So the Web is just a portion of the Internet, albeit a large portion. The two terms should not be confused.,August 28, 2020,13,The Key to Exercises: Reading comprehension 1 (1) F (2) F (3) T (4) F (5) F,August 28, 2020,14,The Key to Exercises: Reading Comprehension 2 The Internet is an open interconnection of networks that enables connected computers to communicate directly. (2) The World Wide Web, or simply Web, is a way of accessing information over the Internet. (3) The World Wide Web uses the HTTP protocol, one of the languages spoken over the Internet, to transmit data. The Web is just one of the ways that information can be disseminated over the Internet. The Internet, not the Web, is also used for e-mail, FTP, newsgroup and IM.,August 28, 2020,15,The Key to Exercises: Vocabulary A2 B3 C7 D1 E4 F5 G6,August 28, 2020,16,The Key to Exercises: Translation 1 1. (1) 迄今为止,互联网的历史相对较短,但发展速度非常快。 (2) 它使得计算机和通信世界发生了前所未有的革命性的变化。 (3) 互联网支持个人和组织间的全球合作、信息共享、网络革新并使商业交易更加快速。 (4) 通过显示文本、图形、动画、声音、视频等,万维网使人们拥有丰富多彩的通信方式。 (5) 万维网使用HTTP协议传输数据,而HTTP协议只是互联网上使用协议的一种。,August 28, 2020,17,The Key to Exercises: Translation 2 2. (1) be based on a common addressing system (2) a way of accessing information over the Internet (3) enter the address or URL of the Web site (4) send the data over the Internet (5) be used for e-mail, FTP, newsgroup and IM,August 28, 2020,18,The Key to Exercises: Reading Material 1.B 2.A 3.C 4.A 5.D,August 28, 2020,19,Word Study relatively adv. 相对地,相关地 Relatively speaking, its a fine day today. 相对来说,今天天气很好。 She walks relatively fast for a child of three. 她作为三岁的孩子走得还比较快。,August 28, 2020,20,Word Study explosive adj. 激增的,迅速扩大的 an explosive increase 急剧增加,August 28, 2020,21,Word Study academic adj. 学术的,理论的 an academic degree 学位 academic interest 学术兴趣,August 28, 2020,22,Word Study revolutionize vt. 使发生剧变 Television has revolutionized news coverage. 电视使新闻覆盖面发生了剧变。,August 28, 2020,23,Word Study innovation n. 改革,创新 technological innovation 技术创新,August 28, 2020,24,Word Study navigate vi. 航行 navigate up (down) a river 向上游(下游)航行,August 28, 2020,25,Word Study synonymous adj. 同义的 synonymous words 同义词 Upon is synonymous with on . upon 与 on 同义。,August 28, 2020,26,Word Study transmit vt. 传输 The news will be transmitted by radio. 这消息将由电台播送。 With the development of modern electrical engineering, we can transmit power to wherever it is needed. 随着现代电力工程的发展,我们能把电力输送到需要电力的任何地方。,August 28, 2020,27,The Internet is an open interconnection of networks that enables connected computers to communicate directly. 互联网是一个开放的互联网络,它使得联网的计算机可以直接通信。,August 28, 2020,28,The Internet has had a relatively brief, but explosive history so far. 迄今为止,互联网历史相对较短,但发展速度非常快。,August 28, 2020,29,It has revolutionized the computer and communications world like nothing before. 它使得计算机和通信世界发生了前所未有的革命性的变化。,August 28, 2020,30,The Internet has supported global collaboration among people and organizations, information sharing, network innovations and rapid business transactions. 互联网支持个人和组织间的全球合作、信息共享、网络革新并使商业交易更加快速。,August 28, 2020,31,The Web allows rich and diverse communication by displaying text, graphics, animation, sound and video. 通过显示文本、图形、动画、声音、视频等,万维网使人们拥有丰富多彩的通信方式。,August 28, 2020,32,Then your browser requests the Web page from the Web server that hosts the Palace Museum Web site. 然后你的浏览器向故宫网站服务器发出网页请求。,August 28, 2020,33,On the Web, you navigate through pages of information based on what interests you at that particular moment, commonly known as browsing the Net. 在万维网上,你可以随着自己的兴趣在网页信息中遨游,一般称为网上浏览。,August 28, 2020,34,The World Wide Web uses the HTTP protocol, one of the languages spoken over the Internet, to transmit data. 万维网使用HTTP协议传输数据,而HTTP协议只是互联网上使用协议的一种。,
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